The synthetic medium of optical N acylalanines was N (2,6 xylyl) alanine.It was reacted with 1 menthol and prepared into its menthol esters which were purified by TLC, resolved and determined by HPLC.
Menthol soothed itchy skin in ancient China, and camphor, a chemical from Evergreen trees historically used to make explosives, has been soothing itchy skin since the 13th century.
If you wanna give it a shot, check for allergies first and make sure to take it out of your gym bag if you normally leave it in your car so it doesn't melt when it gets hot.